Question

find the value of the polynomial at the indicated value of variable p(x)=3x^2-4x-root 11 at x=2

Answer 1

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Answer 2

Given,

A variable p(x) = $3x^{2} -4x-{} \sqrt{11}$

To find,

The value of p(x) = $3x^{2} -4x-{} \sqrt{11}$ at x =2.

Solution,

To find the value at x =2 we will find p(2).

⇒  p(x) = $3x^{2} -4x-{} \sqrt{11}$

⇒  p(2) = 3(2)² - 4(2) - $\sqrt{11}$.

⇒  p(2) = 3(4) - 8 - $\sqrt{11}$.

⇒  p(2) = 12 - 8 - $\sqrt{11}$.

⇒  p(2) = 4 - $\sqrt{11}$.

Hence, the value of polynomial p(x) =  $3x^{2} -4x-{} \sqrt{11}$ at x =2 is,

p(2) = 4 - $\sqrt{11}$.